BR9706836A - Partìculas espumadas de resina de poliolefina e processo de produção das mesmas - Google Patents

Partìculas espumadas de resina de poliolefina e processo de produção das mesmas

Info

Publication number
BR9706836A
BR9706836A BR9706836-5A BR9706836A BR9706836A BR 9706836 A BR9706836 A BR 9706836A BR 9706836 A BR9706836 A BR 9706836A BR 9706836 A BR9706836 A BR 9706836A
Authority
BR
Brazil
Prior art keywords
particles
resin
boric acid
polyolefin resin
foamed particles
Prior art date
Application number
BR9706836-5A
Other languages
English (en)
Inventor
Masaharu Oikawa
Original Assignee
Jsp Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jsp Corp filed Critical Jsp Corp
Publication of BR9706836A publication Critical patent/BR9706836A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/16—Making expandable particles
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/16—Making expandable particles
    • C08J9/18—Making expandable particles by impregnating polymer particles with the blowing agent
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0066—Use of inorganic compounding ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2201/00—Foams characterised by the foaming process
    • C08J2201/02—Foams characterised by the foaming process characterised by mechanical pre- or post-treatments
    • C08J2201/03—Extrusion of the foamable blend
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

<B>"PARTìCULAS ESPUMADAS DE RESINA DE POLIOLEFINA E PROCESSO DE PRODUçãO DAS MESMA"<D>. Quando deseja-se de obter partículas espumadas possuindo uma taxa de expansão alta mediante a produção de partículas espumadas de uma resina de poliolefina, há um problema referente ao fato de partículas espumadas desiguais em diâmetros celulares serem produzidas. Qualquer artigo moldado com as referidas partículas espumadas envolve uma desvantagen no sentido que o mesmo é pobre em estabilidade dimensional e seu perfil de superfície torna-se irregular. A invenção refere-se à partículas espumadas compreendendo uma resina de poliolefina como uma resina de base, onde a resina de base contem um sal metálico (excluindo sais metálicos alcalinos) de ácido bórico de uma maneira na qual o conteúdo do sal metálico de ácido bórico na resina bruta totaliza 50-50.000 ppm. Borato de zinco, borato de magnésio ou afins são utilizados como o sal metálico de ácido bórico. As partículas espumadas são obtidas através da utilização de uma resina de poliolefina contendo o sal metálico de ácido bórico para preparar partículas de resina, dispensando-se as partículas de resina em um meio de dispersão em um reservatório fechado e, ao mesmo tempo, impregnando-se as partículas de resina com um agente espumante, mantendo-se as partículas de resina em uma atmosfera aquecida e pressurizada, e então liberando-se as partículas de resina juntamente com o meio de dispersão em uma atmosfera de uma pressão inferior à pressão interna do reservatório para expandir as partículas de resina.
BR9706836-5A 1996-12-13 1997-06-11 Partìculas espumadas de resina de poliolefina e processo de produção das mesmas BR9706836A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP35277196 1996-12-13
PCT/JP1997/002022 WO1998025996A1 (en) 1996-12-13 1997-06-11 Expanded particles of polyolefin resin and process for preparing the same

Publications (1)

Publication Number Publication Date
BR9706836A true BR9706836A (pt) 1999-12-28

Family

ID=18426333

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9706836-5A BR9706836A (pt) 1996-12-13 1997-06-11 Partìculas espumadas de resina de poliolefina e processo de produção das mesmas

Country Status (7)

Country Link
US (1) US6133331A (pt)
EP (1) EP0905176B1 (pt)
JP (1) JP3638960B2 (pt)
KR (1) KR100341651B1 (pt)
BR (1) BR9706836A (pt)
DE (1) DE69727377T2 (pt)
WO (1) WO1998025996A1 (pt)

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WO2011086938A1 (ja) 2010-01-15 2011-07-21 株式会社カネカ 無架橋ポリエチレン系樹脂発泡粒子及び無架橋ポリエチレン系樹脂発泡成形体
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Also Published As

Publication number Publication date
US6133331A (en) 2000-10-17
WO1998025996A1 (en) 1998-06-18
DE69727377D1 (de) 2004-03-04
DE69727377T2 (de) 2004-09-16
JP3638960B2 (ja) 2005-04-13
KR100341651B1 (ko) 2002-11-23
EP0905176B1 (en) 2004-01-28
EP0905176A1 (en) 1999-03-31
KR19990082531A (ko) 1999-11-25
EP0905176A4 (en) 2000-11-22

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Legal Events

Date Code Title Description
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]